Hard Processor System Technical Reference Manual: Agilex™ 3 SoCs

ID 848530
Date 6/23/2025
Public
Document Table of Contents

5.7.5.7.1. Clock Gating

You can clock gate the ulpi_clk through software. By programming the usbclken bit of the en register in the perpllgrp you can enable or disable the ulpi_clk to the USB.